Document Detail


Preoperative longitudinal left ventricular function by tissue Doppler echocardiography at rest and during exercise is valuable in timing of aortic valve surgery in male aortic regurgitation patients.
MedLine Citation:
PMID:  20362928     Owner:  NLM     Status:  MEDLINE    
Abstract/OtherAbstract:
BACKGROUND: The aim of this study was to evaluate if left ventricular (LV) systolic function by tissue Doppler echocardiography at rest and during exercise preoperatively could predict postoperative LV function and thereby be useful in the timing of aortic valve surgery in patients with severe aortic regurgitation. METHODS: In 29 patients (median age, 59 years; interquartile range, 39-64 years), echocardiography, tissue Doppler echocardiography, and radionuclide ventriculography were performed preoperatively and postoperatively at rest and during supine bicycle exercise. RESULTS: Preoperative ejection fraction (EF) was 62%. Patients formed two groups, with basal LV peak systolic velocity (PSV) 5.9 cm/s preoperatively as the cutoff value between low and high PSV. Preoperatively, patients with low PSV had lower PSV during exercise (P < .005), EF during exercise (P < .05), and atrioventricular plane displacement (AVPD) at rest (P < .005) and during exercise (P < .05) than those with high PSV. Postoperatively, patients with low PSV had smaller AVPD at rest (P < .05), AVPD during exercise (P < .01), and PSV during exercise (P < .01). CONCLUSION: In patients with chronic aortic regurgitation with EFs and LV dimensions not fulfilling criteria for surgery according to guidelines, preoperative PSV and AVPD at rest and during exercise detected postoperative LV dysfunction.
Authors:
Lena M Helin; Eva Tamás; Eva Nylander
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Publication Detail:
Type:  Journal Article    
Journal Detail:
Title:  Journal of the American Society of Echocardiography : official publication of the American Society of Echocardiography     Volume:  23     ISSN:  1097-6795     ISO Abbreviation:  J Am Soc Echocardiogr     Publication Date:  2010 Apr 
Date Detail:
Created Date:  2010-04-05     Completed Date:  2010-09-16     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  8801388     Medline TA:  J Am Soc Echocardiogr     Country:  United States    
Other Details:
Languages:  eng     Pagination:  387-95     Citation Subset:  IM    
Copyright Information:
Copyright 2010 American Society of Echocardiography. Published by Mosby, Inc. All rights reserved.
Affiliation:
Department of Clinical Physiology, Heart Centre in Ostergötland, University Hospital, Linköping, Sweden. lena.helin@liu.se
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MeSH Terms
Descriptor/Qualifier:
Adult
Aortic Valve / surgery*
Aortic Valve Insufficiency / surgery*,  ultrasonography*
Echocardiography, Doppler*
Exercise
Humans
Longitudinal Studies
Male
Middle Aged
Preoperative Period
Rest
Stroke Volume
Systole / physiology
Time Factors
Ventricular Function, Left / physiology*

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine


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